| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 134,938 |
| Biggest Cities in the World | 0 | - | 4.91 | 739,166 |
| Biggest City by Time Zone | 0 | - | 4.85 | 60,283 |
| Biggest City in Every Country | 0 | - | 4.98 | 88,214 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 185,456 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 100,318 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 108,311 |
| Biggest Cities with Exceptions | 0 | - | 4.89 | 71,829 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 77,788 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 393,700 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 71,538 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 44,899 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 64,329 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 48,582 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 60,886 |
| Biggest Cities in the United States | 0 | - | 4.94 | 898,755 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 349,208 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 544,153 |
| Biggest Cities in Germany | 0 | - | 4.95 | 277,465 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 113,978 |
| Biggest Cities by Language | 0 | - | 4.95 | 222,434 |
| Largest City by Island | 0 | - | 4.90 | 64,908 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 67,173 |
| Most Populous World Capitals | 0 | - | 4.93 | 168,168 |
| Biggest European Cities by Century | 0 | - | 4.98 | 124,440 |
| Megacities on a World Map | 0 | - | 4.98 | 230,985 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 63,485 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 68,569 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 98,260 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.42 | 103,246 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.41 | 87,738 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 158,991 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 322,242 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,117 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 86,532 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 44,042 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 160,585 |
| Biggest Cities in Asia | 0 | - | 4.94 | 102,781 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 46,672 |
| Megacities on an Empty Map | 0 | - | 4.95 | 92,326 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 46,217 |
| Cities of China (With Some Help) | 0 | - | 4.89 | 29,756 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 145,195 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 116,239 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.81 | 66,169 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 70,474 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 211,000 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 127,584 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 106,037 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.34 | 95,676 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.14 | 101,313 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 75,341 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 70,694 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.25 | 69,978 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.31 | 71,310 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 151,231 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.97 | 40,846 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 110,034 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 74,403 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.92 | 34,056 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 106,898 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 57,114 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,371,533 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,397 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,118 |
| Countries with Megacities | 0 | - | 4.99 | 215,257 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,832 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,244 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 122,028 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,025 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,002 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 100,007 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 44,086 |
| Biggest City by Region | 0 | - | 4.49 | 34,813 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 55,385 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 53,380 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 97,211 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,989 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,351 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 80,479 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 49,568 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 33,345 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,251 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 35,357 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 121,707 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 80,997 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,773 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 114,930 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,110 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,160 |
| Biggest Cities in Europe | 0 | - | 4.74 | 512,207 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.35 | 24,700 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.98 | 59,019 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 139,870 |
| Biggest Cities in History | 0 | - | 4.50 | 84,714 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 69,971 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 41,727 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 66,497 |
| Biggest Urban Areas in the UK | 0 | - | 4.41 | 171,827 |
| Biggest Cities in Japan | 0 | - | 4.68 | 79,402 |
| Biggest Cities in Russia | 0 | - | 4.48 | 79,548 |
| Biggest Cities in France | 0 | - | 4.70 | 210,741 |
| Biggest Cities in Spain | 0 | - | 4.55 | 161,970 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 53,205 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 50,702 |
| Biggest Cities in Poland | 0 | - | 4.57 | 50,888 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 36,726 |
| Biggest Cities in the UK | 0 | - | 4.47 | 98,989 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.74 | 72,246 |
| Biggest Cities in China | 0 | - | 4.47 | 148,056 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 42,022 |
| Cities of Ireland | 0 | - | 4.50 | 48,278 |
| Biggest Cities in Canada | 0 | - | 4.56 | 126,260 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 45,331 |
| Biggest Cities in India | 0 | - | 4.70 | 65,022 |
| Biggest Cities in Italy | 0 | - | 4.70 | 229,212 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 117,913 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 111,496 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 103,027 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 116,274 |
| Biggest Cities Starting With M | 0 | - | 4.49 | 135,509 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 120,507 |
| Countries of Europe by Population | 0 | - | 4.98 | 143,285 |
| Most Populous Countries by Year | 0 | - | 4.81 | 101,289 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,288 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 102,649 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 99,721 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 106,597 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 83,997 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 71,690 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,884 |
| Biggest English Cities by Century | 0 | - | 4.89 | 102,804 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,473 |
| Biggest City by Region #2 | 0 | - | 4.43 | 23,900 |
| Biggest Cities by Latitude | 0 | - | 4.77 | 26,904 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 71,158 |
| Biggest Mediterranean Cities | 0 | - | 4.56 | 88,650 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 39,145 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,457 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 213,282 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 129,216 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 71,862 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 79,767 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 56,149 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 69,803 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 91,498 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 158,634 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 162,443 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 218,094 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 171,292 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 168,392 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 97,769 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 103,938 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 69,102 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 152,569 |
| Demographics Multiple Choice | 0 | - | 4.68 | 41,040 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 68,358 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,104 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 103,679 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 62,619 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 159,271 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 61,920 |
| Biggest Cities in the World - 2100 | 0 | - | 4.25 | 87,306 |
| Flags to Largest Cities | 0 | - | 4.54 | 35,263 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 29,758 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,767 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,310 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 212,596 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 155,444 |
| Biggest Cities Starting With C | 0 | - | 4.09 | 100,812 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 82,932 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 120,602 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 121,978 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 167,567 |
| Most Populous Islands | 0 | - | 4.77 | 117,483 |
| Islands by Largest City #1 | 0 | - | 4.46 | 92,972 |
| Countries by Population Decrease | 0 | - | 4.46 | 48,237 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.56 | 61,467 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 53,543 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 122,627 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 64,275 |
| Largest World Cities With Four Letters | 0 | - | 4.35 | 44,343 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 81,041 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,009 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 79,325 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 42,176 |
| Biggest "Saint" Cities - United States | 0 | - | 4.48 | 35,412 |
| Biggest Cities by Trait #2 | 0 | - | 4.40 | 14,750 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 38,869 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.43 | 13,933 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,197 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,556 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 181,872 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 159,135 |
| Jewish Cities Quiz | 0 | - | 4.32 | 60,463 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 63,498 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.43 | 49,051 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 58,218 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.68 | 76,831 |
| Biggest Cities Near a Border | 0 | - | 4.19 | 30,481 |
